349256787652943 has 4 divisors (see below), whose sum is σ = 364441865377008. Its totient is φ = 334071709928880.

The previous prime is 349256787652891. The next prime is 349256787652961.

349256787652943 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 349256787652943 - 2³⁰ = 349255713911119 is a prime.

It is a super-2 number, since 2×349256787652943² (a number of 30 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349256787651943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7592538861998 + ... + 7592538862043.

It is an arithmetic number, because the mean of its divisors is an integer number (91110466344252).

Almost surely, 2^{349256787652943} is an apocalyptic number.

349256787652943 is a deficient number, since it is larger than the sum of its proper divisors (15185077724065).

349256787652943 is a wasteful number, since it uses less digits than its factorization.

349256787652943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15185077724064.

The product of its digits is 16460236800, while the sum is 80.

The spelling of 349256787652943 in words is "three hundred forty-nine trillion, two hundred fifty-six billion, seven hundred eighty-seven million, six hundred fifty-two thousand, nine hundred forty-three".